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tcl/esp32s2: check memory protection on gdb attach 

Memory protection must be disabled to allow stub flasher
operate correctly.

Signed-off-by: Erhan Kurubas <erhan.kurubas@espressif.com>
Change-Id: I2f239d98fca6882c4361691af306a5652b58ee78
Reviewed-on: https://review.openocd.org/c/openocd/+/7036
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
This commit is contained in:
Erhan Kurubas 2022-06-18 23:01:28 +02:00 committed by Antonio Borneo
parent 3d61a9593e
commit c1ef4e5207
1 changed files with 35 additions and 0 deletions
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35
tcl/target/esp32s2.cfg
View File

@ -3,6 +3,11 @@
# The ESP32-S2 only supports JTAG.
transport select jtag
set CPU_MAX_ADDRESS 0xFFFFFFFF
source [find bitsbytes.tcl]
source [find memory.tcl]
source [find mmr_helpers.tcl]
if { [info exists CHIPNAME] } {
set _CHIPNAME $CHIPNAME
} else {
@ -21,8 +26,38 @@ set _TAPNAME $_CHIPNAME.$_CPUNAME
jtag newtap $_CHIPNAME $_CPUNAME -irlen 5 -expected-id $_CPUTAPID
proc esp32s2_memprot_is_enabled { } {
# IRAM0, DPORT_PMS_PRO_IRAM0_0_REG
if { [get_mmr_bit 0x3f4c1010 0] != 0 } {
return 1
}
# DRAM0, DPORT_PMS_PRO_DRAM0_0_REG
if { [get_mmr_bit 0x3f4c1028 0] != 0 } {
return 1
}
# PERI1, DPORT_PMS_PRO_DPORT_0_REG
if { [get_mmr_bit 0x3f4c103c 0] != 0 } {
return 1
}
# PERI2, DPORT_PMS_PRO_AHB_0_REG
if { [get_mmr_bit 0x3f4c105c 0] != 0 } {
return 1
}
return 0
}
target create $_TARGETNAME esp32s2 -endian little -chain-position $_TAPNAME
$_TARGETNAME configure -event gdb-attach {
# necessary to auto-probe flash bank when GDB is connected and generate proper memory map
halt 1000
if { [esp32s2_memprot_is_enabled] } {
# 'reset halt' to disable memory protection and allow flasher to work correctly
echo "Memory protection is enabled. Reset target to disable it..."
reset halt
}
}
xtensa maskisr on
$_TARGETNAME configure -event reset-assert-post { soft_reset_halt }